Liam m



waited States gaat. can.

THOMAS A. MAKIBBIN, or ANNAPoLIs, MARvLANn, AssIGNon ro .HIMsnLr, WIL-'Y LIAM M, Pnsnv, AND sEnLYn RICHMOND, or SAME PLAen.v

Letters Patent No. 101,635, dated April 5, 1870.

IMPROVEMENT IN ROOFING.

The Schedule xefen'edto in these Letters Patent and making part of thesame.

To all whom it may concern.- I

Be it ,known that I, THoMAs'A. MAKLBBIN," of Annapolis, in the county ofAnne Arundel and State of Maryland, have invented a new and usefulImprovement in Rooing; and I do hereby declare the' following to be afull and correct description of the same, sufcient toaenable othersskilled in' the class to which my invention appertains to fullyunderstand and apply the same, reference being had to the ac companyingdrawing which forms part of this speciicatiomand in which- Figure 1 isaperspective view of part of a roof, constructed according to myimprovement.

Figure 2'is a perspective v`iew of a similar part, showing the manner ofattaching the boards to the beams, and of securing the side dashing. A

Figure 3 is a sectional end view of one of the boards, showing amodified shape of channel.

Figures 4,5,.6, 7, 8, and 9 are detached perspective views of thedilierent ashings.. Y

Like letters of reference indicate' like parts in the severalfgures. l 5y x The `natureY of vmy invention consists in peculiarlyshaped metalstrips, covering the seams between each' two boards of aboard roof, orany cracks in the boards,'

the said metalstrips Ybeing held inplace by the spring of theirinwardly-bent` sides against the inclinedsides of the channels formed-inthe surface of saidr boards near their side edges, .thus doing away withfasteningv by nails, and consequentrusting. I

In the drawing-y, y g; A represents thei beams 'of. a roof, to which.the

boards B are nailed lengthwise: .1

These boards have channels C cut in their surfaces,

near their side edges, 'said channels being inclined in@ wardly, asclearly shown in iig. l.

The nails securing the boards lto the beams are driven between thechannel and the .side edge of the boards, as shown ing. 2.

In figs. 2 and 3 are shown modifications of the. channels O, one sideonly of the same being incliued,i.

and the other at right angles to the width of the board. By cutting themin -this latterway, nioref space is gained for the water to run downn -Dare metal strips, having their sides bent inwardly, as shown at d, iig.6, the body of this strip being bent outwardly to form a ridge, e. Thesestrips D cover the seams between each two boards, they being sprung overthe seam into the channels on contiguous sides of boards, so that theinwardly-bent edges of the metal strips bear against theinclined sidesnearest to each olther ofthe two channels, thus being securely held in pace.

Successive pieces of metalstrips covering one'seam Voverlap eachotherdownwardly, as shown in iig. 1. l l

Should any crack occurin any ofthe boards, chaunels, as described, areformed yon each side of thel and assist incollecting and camping therain or snowwater to the glitter E, forming gutters themselves at rightangles to gutter E.

In iig. 4 is shown one kind of side flashing, used for cornices or sidepieces of frame-work on a roof.

zThe loweredge is bent, as shown, to seize into the I channel of thelast beam on that side of the roof; the

upper edge is bent at right angles, or nearly so, to the body ofthestrip, and is placed into a slit made in thc vertical Aboard, as' shownin fig. 1.

E ig. '5 shows a side flashing used at the side of a roof, which hasnoframe-work rising above it. One edge of 'it seizes under the inclinedside of the channel ,of the -lastboardon that side 'of' the roof, whilethe other part of the strip is bent to pass over the edge of the roof.

Figs. 7,8, and 9 showtheto'p flashing. The first is for a roof havingtwo inclined sides. It consists of a strip of metal, bent lengthwise tolay onthe edge of the roof, extending downwardly to both sides. Where vit passes over the strips D it is slightly bent up, outwardly, toconform to the shape of strips D, to which theyare soldered. v

'Fig 8 shows sucbflashing Where the roof bias but one side, and' ig. 9shows an end-pieceof top hashing. In using myixnprovement, all the nailssecuring the boards to the beams are covered bythe strips or dashing,and', as the latterare secured without nails, the

rusting of the latter from rain and inclemency of the weather isobviated, and thus the rotting of the wood where the nails pass throughit prevented.

The channels conduct the waterto the gutter, and

vthe bent shape ofthe body of the strips allows them .to give with theexpansionland contraction of the boards from the iniiuence of theatmosphere.

Having thus described my invention, Vhat I claim as new, and desire tosecure by Letters Patent, is-

l. The combination of the `channels C and metal 4 fstrips D, constructedsubstantially as and for the purposes -set forth..

2. Theside and end flashings, constructed substantially asdescribed andshowniniigs. 4 and 5, in combination with channels C, substantially asset forth.

The above specification of my improvement in roofing signed this 4th dayof December, 1869. THOMAS A.l MAKlBBIN.

Witnesses:

HENRY A.- J oHNsToN, HENRY J. Anc'r'z.

